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DIY: Do It Yourself
Post here to share or improve your wrench turning skills! All BMW E46 DIY tips, tales, and projects discussed inside. Learn to work on your car and know the right BMW parts you will need!

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Old 01-11-2017, 04:28 PM   #1
BMOne
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Join Date: Sep 2013
Location: Australia
Posts: 89
My Ride: 325CI 03
WTH is wrong with my brakes

I don't know what the hell is happening with my brakes, on low speeds like esp getting the car off the jacks makes this screeching noise and it feels like i have to press harder at times to stop the car. I have to put in work to stop the car as smooth as i'd like to. (it never stops completely smooth)

Also the parking break doesn't hold the car correctly. It moves a bit before the brakes grab on. and seems to kick when starting the car on some days.

Seems like everything it worse on cold days before the car warms up

I'm really worried for the auto trans.

Things I have tried so far.

replaced front control arms.
replaced brake shoes and flushes brake fluid. ( at least I hope they did what I paid for)

I'm planning to do the brakes/rotors myself soon. Maybe the parking springs and bleed flush again. Just to make sure everything gets done properly

I can upload a video soon of the symptoms.

BMW said they would have to replace the brakes/rotors before they can identify the prob as there not genuine.

Other mechanic said brakes are normal and looks like they have some left (they don't feel normal let me tell you)

For the kick where it goes into gear after starting the car (No matter even if i step on the breaks hard) they said it's normal.



This is driving me crazy as I know this can't be normal, good for the car or safe at times.

Thanks
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Old 01-13-2017, 01:30 PM   #2
Sansho
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Join Date: Jun 2010
Location: CT
Posts: 2,082
My Ride: 2001 325i
Screeching noises are usually either metal-on-metal or a pad/rotor issue (which includes the parking brake). I would complete the work in your "change pads/rotors/parking brake springs" thread, and if the issue is still there, post again.

PS. when you replace the rotor pads, see if they are basically evenly worn on each side. That could identify sticking guide pins or a sticking caliper piston.
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Last edited by Sansho; 01-13-2017 at 01:34 PM.
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